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Cochlear implants, hearing loss

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https://www.readbyqxmd.com/read/29661329/hearing-loss-in-the-elderly
#1
REVIEW
Rohan Patel, Brian J McKinnon
Presbycusis, or age-related hearing loss (ARHL), is the result of physiologic and pathologic changes associated with advancing age. ARHL presents typically with a high-frequency hearing loss, which contributes to greater trouble hearing consonants within words. Consonants convey the bulk of meaning within a word, and this loss of linguistic information results in complaints associated with ARHL. Hearing aids and cochlear implants significantly improve the lives of older adults with hearing loss, in particular, those with depression and dementia...
May 2018: Clinics in Geriatric Medicine
https://www.readbyqxmd.com/read/29650304/the-design-and-validation-of-a-hybrid-digital-signal-processing-plug-in-for-traditional-cochlear-implant-speech-processors
#2
Fatemeh Hajiaghababa, Hamid R Marateb, Saeed Kermani
BACKGROUND AND OBJECTIVE: Cochlear implants (CIs) are electronic devices restoring partial hearing to deaf individuals with profound hearing loss. In this paper, a new plug-in for traditional IIR filter-banks (FBs) is presented for cochlear implants based on wavelet neural networks (WNNs). Having provided such a plug-in for commercially available CIs, it is possible not only to use available hardware in the market but also to optimize their performance compared with the-state-of-the-art...
June 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29649047/preliminary-outcomes-report-for-co2-laser-assisted-electric-acoustic-cochlear-implantation
#3
Shawn M Stevens, Andrew Redmann, Kayla Whitaker, Alyson Ruotanen, Lisa Houston, Theresa Hammer, Ravi N Samy
OBJECTIVE: Report on the safety/efficacy of a novel, carbon dioxide (CO2) laser-assisted protocol for hearing-preservation cochlear implantation (HPCI) and electric-acoustic stimulation (EAS). STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Adult patients meeting established criteria for HPCI and EAS. INTERVENTION: Therapeutic/rehabilitative. A standardized protocol used CO2 laser to achieve meticulous hemostasis and perform cochleostomy was evaluated...
April 11, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29622557/cavitary-plaques-in-otospongiosis-ct-findings-and-clinical-implications
#4
P Puac, A Rodríguez, H-C Lin, V Onofrj, F-C Lin, S-C Hung, C Zamora, M Castillo
BACKGROUND AND PURPOSE: Cavitary plaques have been reported as a manifestation of otospongiosis. They have been related to third window manifestations, complications during cochlear implantation, and sensorineural hearing loss. However, their etiology and clinical implications are not entirely understood. Our purpose was to determine the prevalence, imaging findings, and clinical implications of cavitary plaques in otospongiosis. MATERIALS AND METHODS: We identified patients with otospongiosis at a tertiary care academic medical center from January 2012 to April 2017...
April 5, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29614553/-effects-of-bimodal-intervention-on-the-development-of-auditory-and-speech-ability-in-infants-with-unilateral-cochlear-implantation
#5
M P Huang, H B Sheng, Y Ren, Y Li, Z W Huang, H Wu
Objective: To explore the effects of bimodal intervention on the development of auditory and speech ability in the infants with unilateral cochlear implantation(CI). Methods: Total 35 bilateral profound sensorineural hearing loss infants with unilateral CI, aged 0.7 to 2.8 years old, were selected. The subjects were divided into two groups: the group with unilateral CI(cochlear implant alone, n = 15), and the bimodal group with CI and contralateral fitting hearing aid( n = 20). Their auditory and speech abilities were estimated at the different time points after switch-on(the 0th, 0...
March 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29607748/auditory-brainstem-implant-in-postmeningitis-totally-ossified-cochleae
#6
Andréa Felice Dos Santos Malerbi, Maria Valéria Schmidt Goffi-Gomes, Robinson Koji Tsuji, Marcos Queiroz Teles Gomes, Rubens de Brito Neto, Ricardo Ferreira Bento
INTRODUCTION: An auditory brainstem implant (ABI) is an option for auditory rehabilitation in patients with totally ossified cochleae who cannot receive a conventional cochlear implant. OBJECTIVE: To evaluate the outcomes in audiometry and speech perception tests after the implantation of an ABI via the extended retrolabyrinthine approach in patients with postmeningitis hearing loss. MATERIALS AND METHODS: Ten patients, including children and adults, with postmeningitis hearing loss and bilateral totally ossified cochleae received an ABI in a tertiary center from 2009 to 2015...
April 1, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29605339/cochlear-implantation-in-children-with-auditory-neuropathy-spectrum-disorder-a-multicenter-study-on-auditory-performance-and-speech-production-outcomes
#7
Ahmad Daneshi, Marjan Mirsalehi, Seyed Basir Hashemi, Mohammad Ajalloueyan, Mohsen Rajati, Mohammad Mahdi Ghasemi, Hesamaldin Emamdjomeh, Alimohamad Asghari, Shabahang Mohammadi, Mohammad Mohseni, Saleh Mohebbi, Mohammad Farhadi
OBJECTIVES: To evaluate the auditory performance and speech production outcome in children with auditory neuropathy spectrum disorder (ANSD). The effect of age on the outcomes of the surgery at the time of implantation was also evaluated. METHODS: Cochlear implantation was performed in 136 children with bilateral severe-to- profound hearing loss due to ANSD, at four tertiary academic centers. The patients were divided into two groups based on the age at the time of implantation; Group I: Children ≤24 months, and Group II: subjects >24 months...
May 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29598832/guideline-on-cochlear-implants
#8
Manuel Manrique, Ángel Ramos, Carlos de Paula Vernetta, Elisa Gil-Carcedo, Luis Lassaleta, Isabel Sanchez-Cuadrado, Juan Manuel Espinosa, Ángel Batuecas, Carlos Cenjor, María José Lavilla, Faustino Núñez, Laura Cavalle, Alicia Huarte
INTRODUCTION: In the last decade numerous hospitals have started to work with patients who are candidates for a cochlear implant (CI) and there have been numerous and relevant advances in the treatment of sensorineural hearing loss that extended the indications for cochlear implants. OBJECTIVES: To provide a guideline on cochlear implants to specialists in otorhinolaryngology, other medical specialities, health authorities and society in general. METHODS: The Scientific Committees of Otology, Otoneurology and Audiology from the Spanish Society of Otolaryngology and Head and Neck Surgery (SEORL-CCC), in a coordinated and agreed way, performed a review of the current state of CI based on the existing regulations and in the scientific publications referenced in the bibliography of the document drafted...
March 26, 2018: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/29584754/long-term-delivery-of-brain-derived-neurotrophic-factor-bdnf-from-nanoporous-silica-nanoparticles-improves-the-survival-of-spiral-ganglion-neurons-in-vitro
#9
Nadeschda Schmidt, Jennifer Schulze, Dawid P Warwas, Nina Ehlert, Thomas Lenarz, Athanasia Warnecke, Peter Behrens
Sensorineural hearing loss (SNHL) can be overcome by electrical stimulation of spiral ganglion neurons (SGNs) via a cochlear implant (CI). Restricted CI performance results from the spatial gap between the SGNs and the electrode, but the efficacy of CI is also limited by the degeneration of SGNs as one consequence of SHNL. In the healthy cochlea, the survival of SGNs is assured by endogenous neurotrophic support. Several applications of exogenous neurotrophic supply have been shown to reduce SGN degeneration in vitro and in vivo...
2018: PloS One
https://www.readbyqxmd.com/read/29577849/facial-nerve-stimulation-after-cochlear-implantation-our-experience-in-448-adult-patients
#10
Joana Sanches Pires, Ana Sofia Melo, Ricardo Caiado, Jorge Humberto Martins, João Elói Moura, Luís Filipe Silva
Facial nerve stimulation (FNS) after cochlear implant activation is a well-known side effect, with an incidence rate raging between 1% and 14.9%. Some causes of deafness have been associated with a higher incidence of this entity, however, there is still no consensus regarding its pathophysiological mechanisms. Although FNS can be solved with changes in speech processor programming, in some cases this can lead to a decrease in performance. The aim of this work was to review the epidemiologic, clinical aspects, and performance results in a group of FNS after cochlear implantation...
March 25, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29577839/single-sided-deaf-tactical-unit-officer-treated-with-cochlear-implantation
#11
Jean-Michel Bourque, Nicolas Rouleau, Mathieu Côté, Daniel Philippon, Richard Bussières
OBJECTIVES: To demonstrate the efficacy of cochlear implantation for management of a severe single-sided deaf tactical unit officer. Showing that hearing improvement provided by cochlear implantation was sufficient for him to return to work as a police tactical officer. METHODS: Case report. RESULTS: A 43 years-old man working as a tactical unit officer suffered from a work-related severe single-sided hearing loss. He tried unsuccessfully many types of hearing aids including a contralateral routing of sound (CROS) system and a bone conduction hearing aid with a headband...
March 26, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29570913/children-with-cochlear-implants-in-infancy-predictors-of-early-vocabulary
#12
Edith L Bavin, Julia Sarant, Greg Leigh, Luke Prendergast, Peter Busby, Candida Peterson
BACKGROUND: Language outcomes for children with cochlear implants (CIs) vary widely, even for those implanted before 2 years of age. Identifying the main influencing factors that account for some of the variability is important in order to provide information to guide appropriate clinical and intervention services for young children with CIs. However, there is limited research focusing on the predictors of early vocabulary development for children implanted in infancy. AIMS: To identify significant predictors of vocabulary (12-15 months post-implant) for a sample of 33 children with CIs, the majority implanted between 6 and 10 months of age, drawing on predictors of vocabulary reported for children with normal hearing...
March 23, 2018: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29570158/growth-hormone-promotes-neurite-growth-of-spiral-ganglion-neurons
#13
Jennis Gabrielpillai, Christin Geissler, Belinda Stock, Timo Stöver, Marc Diensthuber
Intact spiral ganglion neurons are a specific requirement for hearing rehabilitation in deaf patients by cochlear implantation. Neurotrophic growth factors have been proposed as effective tools to protect and regenerate spiral ganglion neurons that are degenerated in the majority of patients suffering from hearing loss. Here, we show that growth hormone (GH), a pleiotropic growth factor whose neurotrophic role in the inner ear is still unclear, significantly increases neurite extension, as well as neuronal branching, in spiral ganglion cell cultures derived from early postnatal rats...
March 21, 2018: Neuroreport
https://www.readbyqxmd.com/read/29566583/benefits-of-upgrading-to-the-nucleus-%C3%A2-6-sound-processor-for-a-wider-clinical-population
#14
Michelle J Todorov, Karyn L Galvin
OBJECTIVES: To determine whether a large clinical group of cochlear implant (CI) recipients demonstrated a difference in sentence recognition in noise when using their pre-upgrade sound processor compared to when using the Nucleus 6 processor, and to examine the impact of the following factors: implant type, sound processor type, age, or onset of hearing loss. METHODS: A file review of 154 CI recipients (aged 7-92 years old) who requested an upgrade to the Nucleus 6 sound processor at the Cochlear Care Centre Melbourne was conducted...
March 22, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29562365/cultural-identity-of-young-deaf-adults-with-cochlear-implants-in-comparison-to-deaf-without-cochlear-implants-and-hard-of-hearing-young-adults
#15
Ester Goldblat, Tova Most
This study examined the relationships between cultural identity, severity of hearing loss (HL), and the use of a cochlear implant (CI). One hundred and forty-one adolescents and young adults divided into three groups (deaf with CI, deaf without CI, and hard-of-hearing (HH)) and 134 parents participated. Adolescents and young adults completed questionnaires on cultural identity (hearing, Deaf, marginal, bicultural-hearing, and bicultural-deaf) and communication proficiencies (hearing, spoken language, and sign language)...
March 17, 2018: Journal of Deaf Studies and Deaf Education
https://www.readbyqxmd.com/read/29557301/fluctuating-hearing-loss-in-the-only-hearing-ear-cochlear-implantation-in-the-contralateral-deaf-side
#16
Francesca Yoshie Russo, Daniele De Seta, Ghizlene Lahlou, Stéphanie Borel, Yann Nguyen, Didier Bouccara, Olivier Sterkers, Daniele Bernardeschi, Isabelle Mosnier
Objective To investigate the hearing performance of adult patients presenting unilateral deafness with contralateral fluctuating hearing loss who received a cochlear implant on the deaf side. Study Design Case series with chart review. Setting University tertiary referral center. Subjects and Methods Preoperatively and at 6 and 12 months postoperatively, 23 patients underwent pure tone audiometry and speech audiometry with disyllabic and monosyllabic words in a quiet environment and sentences in quiet and noisy (signal-to-noise ratio +10 dB SPL) environments under best-aided conditions...
March 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29555078/active-middle-ear-implants
#17
Luis Lassaletta, Isabel Sánchez-Cuadrado, Juan Manuel Espinosa, Ángel Batuecas, Carlos Cenjor, María José Lavilla, Laura Cavallé, Alicia Huarte, Faustino Nuñez, Manuel Manrique, Ángel Ramos, Carlos de Paula, Elisa Gil-Carcedo
Active middle ear implants are surgically implanted prosthesis, which intend to stimulate the ossicular chain or the inner ear fluids through the oval or round windows. These implants may be useful for the treatment of certain patients with sensorineural hearing loss as well as for conductive or mixed hearing loss. This clinical guide attempts to summarize the current knowledge concerning the basic characteristics and indications of the most commonly used middle ear implants, including Vibrant Soundbrige (Med-el, Innsbruck), Carina (Cochlear, Australia), and CodacsTM ...
March 17, 2018: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/29553961/overcoming-developing-world-challenges-in-cochlear-implantation-a-south-american-perspective
#18
Ricardo F Bento, Fayez Bahmad, Miguel A Hippolyto, Sady S Da Costa
PURPOSE OF REVIEW: Effective hearing rehabilitation with cochlear implantation is challenging in developing countries, and this review focuses on strategies for childhood profound sensorineural hearing loss care in South America. RECENT FINDINGS: Most global hearing loss exists in developing countries; optimal cost-effective management strategies are essential in these environments. This review aims to assess and discuss the challenges of cochlear implantation effectiveness in South America...
March 15, 2018: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29553844/estimation-of-the-status-of-spiral-ganglion-neurons-and-schwann-cells-in-the-auditory-neural-degeneration-mouse-using-the-auditory-brainstem-response
#19
Zhi-Jian Zhang, Hong-Xia Guan, Kun Yang, Bo-Kui Xiao, Hua Liao, Yang Jiang, Tao Zhou, Qing-Quan Hua
CONCLUSION: The auditory brainstem response (ABR) wave I threshold, latency and amplitude are insensitive to spiral ganglion neurons (SGNs) degeneration, but are sensitive to the degeneration of Schwann cells and can estimate the status of Schwann cells in a neural degeneration mouse model. The thorough pre-operative ABR assessment would be helpful in predicting cochlear implant performance. OBJECTIVES: This study aimed in finding a non-invasive electrophysiological method to evaluate the status of the auditory nerve and the Schwann cells in sensorineural hearing loss (SNHL) and auditory neuropathy (AN) ears, and providing useful information for candidates screening and outcome prediction in cochlear implantation...
March 19, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29553839/bimodal-benefit-for-cochlear-implant-listeners-with-different-grades-of-hearing-loss-in-the-opposite-ear
#20
Ulrich Hoppe, Thomas Hocke, Frank Digeser
OBJECTIVE: To determine speech perception in quiet and noise of adult cochlear implant listeners retaining a hearing aid contralaterally. Second, to investigate the influence of contralateral hearing thresholds and speech perception on bimodal hearing. PATIENTS AND METHODS: Sentence recognition with hearing aid alone, cochlear implant alone and bimodally at 6 months after cochlear implantation were assessed in 148 postlingually deafened adults. Data were analyzed for bimodal summation using measures of speech perception in quiet and in noise...
March 19, 2018: Acta Oto-laryngologica
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